We do not use smart pricing to set our rates, as @Mike-And-Jane0 point out, it is not a tool that will maximize host earnings.
Only very infrequently do we turn on smart pricing, and only for a couple of days, when:
1. We have a few odd nights open; and we want to fill in…
2. Test marketing to visitor clicks.
VRBO at one time had a great pricing tool for hosts; which we often found very helpful to set rates, not sure if they still have this available.